Republican presidential front-runner Donald Trump, fresh off a string of election victories, said on Wednesday he was confident he would get enough delegates to win his party's nomination and warned of unrest if it were denied to him.

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Trump, in an interview with CNN, said if he got a large number of delegates yet was denied the nomination: "I don't think you can say that we don't get it automatically. I think you'd have riots. I think you'd have riots. I'm representing many, many millions of people."